"Facebook founder and CEO Mark Zuckerberg has been more focused
on running the business and making acquisitions than on preparing
for the share sale, according to one of these people, making it
hard for him and other managers to focus wholeheartedly on the
IPO preparations."

A source of ours close to the IPO says: "There's absolutely
nothing concrete. That's somebody needing something to
write. Schedules were just reported, not known."

Our source also argued: "If [a delay] happened so what?"

We don't buy that Zuckerberg's participation level has anything
to do with whether or not the IPO gets delayed.

From the beginning, the IPO has been Facebook CFO David
Ebersman's show to run.